Oracle诊断案例 -SGA与Swap

　　案例描述:
　　用户报告，服务器启动一段时间以后，无法建立数据库连接
　　重新启动几分钟以后，再次无法连接
　　
　　系统无法正常使用.
　　
　　1.登陆系统
　　SunOS 5.8
　　
　　login: root
　　Password:
　　Last login: Tue Mar 23 13:56:59 from 172.16.31.41
　　Sun Microsystems Inc. SunOS 5.8 Generic Patch October 2001
　　You have new mail.
　　
　　2.su 为Oracle用户
　　检查启动的Oracle进程
　　
　　发现后台进程正常，有一定量的用户连接
　　
　　wapplatform:/>su - oracle
　　Sun Microsystems Inc. SunOS 5.8 Generic Patch October 2001
　　You have new mail.
　　/export/home1/oracle>ls
　　admin codesyndealt31 exp.sh local.cshrc local.profile oraclebak oui v6_database
　　app exp.log jre local.login nsmail oradata swan
　　export/home1/oracle>cd admin
　　/export/home1/oracle/admin>ps -ef|grep ora
　　oracle 25269 25258 0 13:58:36 pts/3 0:00 grep ora
　　oracle 25257 24906 0 13:58:31 pts/4 0:00 vi alert_HSWAPDB.log
　　oracle 25267 1 1 13:58:34 ? 0:00 oracleHSWAPDB (LOCAL=NO)
　　oracle 25184 1 0 13:56:57 ? 0:00 ora_p007_HSWAPDB
　　oracle 25182 1 0 13:56:57 ? 0:00 ora_p006_HSWAPDB
　　oracle 25193 1 0 13:57:03 ? 0:01 oracleHSWAPDB (LOCAL=NO)
　　oracle 25209 1 0 13:57:09 ? 0:00 oracleHSWAPDB (LOCAL=NO)
　　oracle 25176 1 0 13:56:57 ? 0:00 ora_p003_HSWAPDB
　　oracle 25180 1 0 13:56:57 ? 0:00 ora_p005_HSWAPDB
　　oracle 25172 1 0 13:56:56 ? 0:00 ora_p001_HSWAPDB
　　oracle 25178 1 0 13:56:57 ? 0:00 ora_p004_HSWAPDB
　　oracle 25170 1 0 13:56:56 ? 0:00 ora_p000_HSWAPDB
　　oracle 24254 24240 0 12:08:25 pts/2 0:00 -ksh
　　oracle 25174 1 0 13:56:56 ? 0:00 ora_p002_HSWAPDB
　　oracle 25244 1 1 13:58:23 ? 0:00 oracleHSWAPDB (LOCAL=NO)
　　oracle 25218 1 0 13:57:23 ? 0:00 oracleHSWAPDB (LOCAL=NO)
　　oracle 25159 1 0 13:56:42 ? 0:02 ora_qmn0_HSWAPDB
　　oracle 25230 1 0 13:57:40 ? 0:01 oracleHSWAPDB (LOCAL=NO)
　　oracle 25161 1 0 13:56:42 ? 0:00 ora_s000_HSWAPDB
　　oracle 25149 1 0 13:56:41 ? 0:01 ora_lgwr_HSWAPDB
　　oracle 25157 1 0 13:56:42 ? 0:00 ora_cjq0_HSWAPDB
　　oracle 24906 3698 0 13:47:47 pts/4 0:00 -ksh
　　oracle 25153 1 0 13:56:42 ? 0:01 ora_smon_HSWAPDB
　　oracle 25058 7464 0 13:55:14 pts/1 0:00 -ksh
　　oracle 25163 1 0 13:56:42 ? 0:00 ora_d000_HSWAPDB
　　oracle 25155 1 0 13:56:42 ? 0:00 ora_reco_HSWAPDB
　　oracle 25151 1 0 13:56:41 ? 0:00 ora_ckpt_HSWAPDB
　　oracle 25145 1 0 13:56:41 ? 0:00 ora_dbw0_HSWAPDB
　　oracle 25199 1 15 13:57:04 ? 0:49 ora_j000_HSWAPDB
　　oracle 4149 4146 0 12:05:11 pts/5 0:00 -ksh
　　oracle 25232 1 0 13:57:41 ? 0:00 oracleHSWAPDB (LOCAL=NO)
　　oracle 25119 1 0 13:56:29 ? 0:00 oraclehswapdb (LOCAL=NO)
　　oracle 25075 1 0 13:55:34 ? 0:00 /export/home1/oracle/app/bin/tnslsnr LISTENER -inherit
　　oracle 24374 4149 0 12:21:56 pts/5 0:00 sqlplus /nolog
　　oracle 25143 1 0 13:56:41 ? 0:00 ora_pmon_HSWAPDB
　　oracle 25258 25242 0 13:58:31 pts/3 0:00 -ksh
　　/export/home1/oracle/admin>ps -ef|grep ora_
　　oracle 25275 25258 0 13:58:42 pts/3 0:00 grep ora_
　　oracle 25184 1 0 13:56:57 ? 0:00 ora_p007_HSWAPDB
　　oracle 25182 1 0 13:56:57 ? 0:00 ora_p006_HSWAPDB
　　oracle 25176 1 0 13:56:57 ? 0:00 ora_p003_HSWAPDB
　　oracle 25180 1 0 13:56:57 ? 0:00 ora_p005_HSWAPDB
　　oracle 25172 1 0 13:56:56 ? 0:00 ora_p001_HSWAPDB
　　oracle 25178 1 0 13:56:57 ? 0:00 ora_p004_HSWAPDB
　　oracle 25170 1 0 13:56:56 ? 0:00 ora_p000_HSWAPDB
　　oracle 25174 1 0 13:56:56 ? 0:00 ora_p002_HSWAPDB
　　oracle 25159 1 0 13:56:42 ? 0:02 ora_qmn0_HSWAPDB
　　oracle 25161 1 0 13:56:42 ? 0:00 ora_s000_HSWAPDB
　　oracle 25149 1 0 13:56:41 ? 0:01 ora_lgwr_HSWAPDB
　　oracle 25157 1 0 13:56:42 ? 0:00 ora_cjq0_HSWAPDB
　　oracle 25153 1 0 13:56:42 ? 0:01 ora_smon_HSWAPDB
　　oracle 25163 1 0 13:56:42 ? 0:00 ora_d000_HSWAPDB
　　oracle 25155 1 0 13:56:42 ? 0:00 ora_reco_HSWAPDB
　　oracle 25151 1 0 13:56:41 ? 0:00 ora_ckpt_HSWAPDB
　　oracle 25145 1 0 13:56:41 ? 0:00 ora_dbw0_HSWAPDB
　　oracle 25199 1 13 13:57:04 ? 0:51 ora_j000_HSWAPDB
　　oracle 25143 1 0 13:56:41 ? 0:00 ora_pmon_HSWAPDB
　　
　　3.检查Alert.log警报日志文件
　　/export/home1/oracle/admin>ls
　　hswapdb
　　/export/home1/oracle/admin>cd *
　　/export/home1/oracle/admin/hswapdb>ls
　　bdump cdump create pfile udump
　　/export/home1/oracle/admin/hswapdb>cd bdump
　　/export/home1/oracle/admin/hswapdb/bdump>
　　
　　/export/home1/oracle/admin/hswapdb/bdump>ls -l *.log
　　
　　-rw-r--r-- 1 oracle dba 813396 Mar 23 13:57 alert_HSWAPDB.log
　　/export/home1/oracle/admin/hswapdb/bdump>vi *.log
　　"alert_HSWAPDB.log" 18888 lines, 813396 characters (115 null)
　　Tue Jun 24 21:17:14 2003
　　Starting ORACLE instance (normal)
　　LICENSE_MAX_SESSION = 0
　　LICENSE_SESSIONS_WARNING = 0
　　SCN scheme 3
　　Using log_archive_dest parameter default value
　　LICENSE_MAX_USERS = 0
　　SYS auditing is disabled
　　Starting up ORACLE RDBMS Version: 9.2.0.3.0.
　　System parameters with non-default values:
　　processes = 400
　　timed_statistics = TRUE
　　shared_pool_size = 117440512
　　large_pool_size = 83886080
　　java_pool_size = 33554432
　　control_files = /export/home1/oracle/oradata/hswapdb/control01.ctl,
　　
　　/export/home1/oracle/oradata/hswapdb/control02.ctl,
　　/export/home1/oracle/oradata/hswapdb/control03.ctl
　　db_block_size = 8192
　　db_cache_size = 352321536
　　compatible = 9.2.0.0.0
　　db_file_multiblock_read_count= 16
　　fast_start_mttr_target = 300
　　undo_management = AUTO
　　undo_tablespace = UNDOTBS1
　　undo_retention = 10800
　　remote_login_passwordfile= EXCLUSIVE
　　db_domain = eygle.com
　　instance_name = hswapdb
　　dispatchers = (PROTOCOL=TCP) (SERVICE=hswapdbXDB)
　　job_queue_processes = 10
　　hash_join_enabled = TRUE
　　background_dump_dest = /export/home1/oracle/admin/hswapdb/bdump
　　user_dump_dest = /export/home1/oracle/admin/hswapdb/udump
　　core_dump_dest = /export/home1/oracle/admin/hswapdb/cdump
　　sort_area_size = 524288
　　db_name = hswapdb
　　open_cursors = 300
　　star_transformation_enabled= FALSE
　　query_rewrite_enabled = FALSE
　　pga_aggregate_target = 154140672
　　aq_tm_processes = 1
　　
　　.................
　　
　　Tue Mar 23 13:40:45 2004
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 11, op = fork, loc = skgpspawn5
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　Tue Mar 23 13:42:02 2004
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3
　　Tue Mar 23 13:55:38 2004
　　Starting ORACLE instance (normal)
　　Shutting down instance: further logons disabled
　　Tue Mar 23 13:56:20 2004
　　Shutting down instance (abort)
　　License high water mark = 26
　　Instance terminated by USER, pid = 25112
　　Tue Mar 23 1

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